They can indeed censor, I think what the prior poster was saying is that if they choose to censor, their regulation changes.
If AT&T wants to censor, they have to go find other business. They can't be in the telephone business and censor. It's a lawsuit and possible jail for the execs involved.
People are so desperate to justify censorship that they'll make up nonsense. I can't believe anyone is dumb enough to believe all the pro-censorship nonsense in my thread. The only explanation is bias once again forcing people to make up and accept nonsense.